AN/BLQ-11 Long-Term Mine Reconnaissance System

Class overview
NameAN/BLQ-11
BuildersBoeing Defense, Space & Security
Operators United States Navy
General characteristics
TypeAutonomous underwater vehicle
Displacement2,743 pounds (1,244 kg)
Length20 ft (6.1 m)
Beam1 ft 9 in (0.53 m)
Height1 ft 9 in (0.53 m)
PropulsionThrusters
Endurance60 hours (nominal load)
Test depth3,300 ft (1,000 m; 550 fathoms)
Sensors &
processing systems
Forward/side-scan synthetic aperture sonar

The AN/BLQ-11 is an autonomous unmanned undersea vehicle (UUV) formerly called Long-Term Mine Reconnaissance System (LMRS). It was developed by Boeing Defense, Space & Security for the United States Navy. The LMRS is a torpedo tube-launched and tube-recovered underwater search and survey vehicle capable of autonomous naval minefield reconnaissance as much as 120 miles (190 km) in advance of its host Los Angeles-, Seawolf-, or Virginia-class submarine. LMRS is equipped with both forward-looking sonar and side-scan synthetic aperture sonar.